Laserfiche WebLink
r <br />�4 <br /> F <br /> AGS Job No. 38032-1 <br /> Station No, 6981, Stockton, California <br /> ach former storage tank. The native soil consists <br /> of orange- to gray-brown clayey silt at the depths sampled. <br /> obvious moderate to strong hydrocarbon odor, inferred to be <br /> gasoiina, was present in the vicinity of the tank cavity. The <br /> geologiat onsite noted an olive-green to gray discoloration in <br /> the native material under the eastern two tanks. Evidence of <br /> soil contamination was also noted under the.fill end of Tank T-1. <br /> ' Soil samples were collected from the base of the tank cavity by <br /> excavating below the former tanks with the hoptoe. Each sample <br /> was collected using a hand-operated percussion sampler to drive a <br /> clean brass sample sleeve into the soil in the hoptoe bucket <br /> immediately after it was brought to the surface. The sleeve was <br /> removed from the sampler and sealed with aluminum foil, plastic <br /> caps and airtight tape. The sample was then labeled and placed <br /> in iced storage. The samples were given sample identifications <br /> designating the approximate depth of the sample and the location <br /> of the sample in the tank cavity. <br /> The sample locations are shown on the $ample Location Map. A <br /> L' Chain of Custody Record was initiated b the <br /> Y geologist in the <br /> field and accompanied the samples to the analytical laboratory. <br /> A copy of this record is included in the Appendix to this report. (. <br /> 9 <br /> 4 <br /> Applied GwSystems <br />